1. Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing 100191, China
2. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
3. Department of Epidemiology, School of Public Health and Management, Binzhou Medical University, Yantai 264003, China
4. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
5. Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China
6. Fujian Provincial Maternity and Children’s Hospital, affiliated hospital of Fujian Medical University, Fuzhou 350005, China
7. Department of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China